A heat transfer oil steam generator is a device that combines the functions of a heat transfer oil furnace and a steam generator. This kind of equipment is widely used in food processing, rubber, wood processing, grease and other industries, which meets the process requirements of using only one equipment and generating steam at the same time, saving space and cost.
Thermal oil vapor generators use thermal oil as a heat transfer medium to generate steam by heating thermal oil. The heat transfer oil has high thermal stability and low viscosity at high temperatures, which can transfer more heat, so that the steam generator has good thermal efficiency and smaller volume.
The main features of heat transfer oil vapor generators are energy saving, safety and environmental protection. It uses combustion technology and a control system to achieve heating and low emissions, reducing the environmental impact. In addition, the equipment also has the characteristics of automatic control, easy operation and convenient maintenance, which can reduce labor costs and improve production efficiency.
The construction of a heat transfer oil vapor generator
Schematic diagram of horizontal and vertical steam generators.
1.Boiler body
The boiler body of the heat transfer oil steam generator is mainly composed of a shell, a tube bundle and a partition. The shell is the main structure of the whole boiler, which is usually welded with steel plates and steel pipes, which has high strength and pressure resistance. The tube bundle is the part through which the heat transfer oil flows and heats it, usually made of stainless steel or carbon steel. The partition separates the bundle from the tank and prevents them from mixing.
2.Fuel system
The fuel system of the heat transfer oil vapor generator includes two parts: the oil supply system and the ignition system. The oil supply system is mainly composed of oil storage tanks, transfer pumps, oil pipelines, etc., and its role is to transport fuel to the ignition system for ignition. The ignition system consists of an igniter and a controller that ignites the fuel to produce heat.
3.Steam system
The steam system of the heat transfer oil steam generator is mainly composed of a steam generator, a water tank, a steam pipeline and a valve. A steam generator is the part that transfers the heat energy from the heat transfer oil to the water, causing it to produce steam. The water tank stores water and also regulates the water level. Steam pipes and valves transport the generated steam to the equipment that needs to be heated.
4.Control system
The control system of the heat transfer oil vapor generator is mainly composed of temperature controller, pressure controller, liquid level controller, etc. The temperature controller can automatically adjust the temperature of the heat transfer oil according to the set value and adjust the heating effect. The pressure controller can monitor the internal pressure of the boiler and adjust it according to the set value to ensure the safe operation of the boiler. The liquid level controller can monitor the liquid level inside the water tank and adjust it according to the set value to stabilize the water level.
Working principle of heat transfer oil vapor generator:
First, the heating process.
The heating process of the oil guide evaporator is an important part of the work. When a heat source (usually a base steam or electric heating element) heats the tube wall of the base generator, the heat is transferred to the liquid inside the tube through the tube wall: this process causes the liquid to rise in temperature and begin to transition to a gas-liquid two-phase state.
Second, the vaporization process.
As the temperature of the liquid increases, part of the liquid begins to vaporize, forming steam. The process of vaporization creates a temperature difference between the inner wall of the oil guide pipe and the liquid on the outside, which further promotes the circulation of the liquid and allows the liquid inside the base generator to be continuously heated.
Third, the oil conduction process.
The design of the oil guide evaporator takes into account vapor-liquid separation and oil conduction functions. During the evaporation process, the resulting vapor is exported through the upper part of the evaporator, while the unvaporized liquid is directed to the bottom of the evaporator through a special structural design such as ramps and baffles, maintaining the circulating flow of the liquid.
Fourth, the condensation process.
The steam that is exported from the oil guide evaporator usually goes to the next working unit, the condenser. In a condenser, the steam is cooled by cooling water or air and condenses again into a liquid. This process takes out the heat in the steam and at the same time produces condensate that can be used in other processes.
5. Collection and recycling.
The condensed liquid is returned to the bottom of the oil guide evaporator by gravity or driven by a pump, where the heating and evaporation process is restarted. This cyclic process works continuously, which improves the utilization rate of energy.
Summary: The working principle of the oil guide evaporator is mainly based on the processes of heating, vaporization, oil conduction, condensation, and collection and circulation, which work together to achieve continuous evaporation of liquids and efficient use of energy.
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